6:09 a.m.
Author: shawkins
Date: 2011-11-17 07:09:19 -0500 (Thu, 17 Nov 2011)
New Revision: 3664
Modified:
trunk/build/kits/jboss-container/teiid-releasenotes.html
Log:
updating feature list
Modified: trunk/build/kits/jboss-container/teiid-releasenotes.html
===================================================================
--- trunk/build/kits/jboss-container/teiid-releasenotes.html 2011-11-16 23:54:12 UTC (rev
3663)
+++ trunk/build/kits/jboss-container/teiid-releasenotes.html 2011-11-17 12:09:19 UTC (rev
3664)
@@ -30,16 +30,22 @@
<LI><B>File Enhancements</B> - the file translator can now optionally
(via the ExceptionIfFileNotFound property) throw an exception if the path refers to a file
that doesn't exist. The file resource adapter can be configured to map file names and
can prevent parent path .. references. See the Admin Guide or the file-ds.xml template
for more.
<LI><B>TEXTTABLE Enhancements</B> - TEXTTABLE can now parse fixed
width files that do not use a row delimiter and can optionally produce fixed values that
haven't been trimmed.
<LI><B>Temp table transactions</B> - Internal materialized views and
temp table usage from a session and within procedures can take advantage of greater
transaction support.
- <LI><B>Buffering Improvements</B> - Added the ability to inline
memory based or small lobs and added tracking of the memory held by soft references. Also
switched to a concurrent LFRU algorithm that significantly reduces writes and read misses
with temporary tables. Added a memory buffer to better handle file storage.
- The memory buffer may be optional be configured as off-heap for better large memory
performance - see the Admin Guide for more. Overhead is now tracked to help prevent
memory errors when dealing with 10s of millions or more of batches/pages. Serialization
and disk utilization were also improved.
+ <LI><B>Buffering Improvements</B>
+ <ul>
+ <li>Added the ability to inline memory based or small lobs.
+ <li>Added tracking of the memory held by soft references and general batch
overhead. This ensures more efficient cache/memory utilization when dealing with 10s of
millions or more of batches/pages.
+ <li>Also switched to a concurrent LFRU algorithm that significantly reduces
writes and read misses with temporary tables.
+ <li>Added a memory buffer to better handle file storage as fixed blocks. The
memory buffer may optionally be configured as off-heap for better large memory performance
- see the Admin Guide for more.
+ <li>Serialization was improved for both internal batches and client/server
batches.
+ </ul>
<LI><B>GSSAPI</B> - both the Teiid JDBC client/server and the ODBC pg
backend can now support GSSAPI for single sign-on.
<LI><B>Server-side Query Timeouts</B> - default query timeouts can be
configured at both the VDB (via the query-timeout VDB property) and entire server (via the
teiid-jboss-beans.xml queryTimeout property).
- <LI><B>Native Queries</B> - added the ability to specify native query
SQL for JDBC physical tables and stored procedures via extension metadata.
- <LI><B>View removal hint</B> - the NO_UNNEST hint now also applies to
from clause views and subqueries. It will instruct the planner to not perform view
flattening.
+ <LI><B>Native Queries</B> - added the ability to specify native query
SQL for JDBC physical tables and stored procedures via extension metadata. See the
Reference for more.
+ <LI><B>View removal hint</B> - the NO_UNNEST hint now also applies to
FROM clause views and subqueries. It will instruct the planner to not perform view
flattening.
<LI><B>Non-blocking statement execution</B> - Teiid JDBC extensions
TeiidStatement and TeiidPreparedStatement can be used to submit queries against embedded
connections with a callback to process results in a non-blocking manner.
<LI><B>NON_STRICT limit hint</B> - the NON_STRICT hint can be used
with unordered limits to tell the optimizer to not inhibit push operations even if the
results will not be consistent with the logical application of the limit.
- <LI><B>Source Hints</B> - user and transformation queries can specify
a meta source hint, e.g. SELECT /*+ sh my-oracle:'leading' */ * FROM TBL. The
hint information will be passed to the passed to the translator. The Oracle translator
will by default treat the source hint as an Oracle hint.
- <LI><B>Hive Translator</B> - Hive translator has been added as
technology preview.
+ <LI><B>Source Hints</B> - user and transformation queries can specify
a meta source hint, e.g. SELECT /*+ sh my-oracle:'leading' */ * FROM TBL. The hint
information will be passed to the translator. The Oracle translator will by default treat
the source hint as an Oracle hint. See the Reference and Developers Guide for more.
+ <LI><B>Hive Translator</B> - Hive translator has been added as a
technology preview.
</UL>
<h2><a name="Compatibility">Compatibility
Issues</a></h2>